The 840 Profile Trapezoidal Roll Forming Machine by Toppo Machinery is specialized in producing high-quality 840 type roofing sheets. With robust construction, hydraulic cutting, and PLC control, it ensures fast, accurate, and reliable sheet forming for industrial and commercial roofing projects.
Material: Galvanized steel, PPGI, PPGL, Aluminum
Material Thickness: 0.3 – 0.8 mm
Effective Width: 840 mm
Feeding Width: 1000 mm
Forming Stations: 16–20
Roller Material: 45# steel with hard chrome coating
Structure: Welded steel frame with precision machining
Transmission: Chain drive
Motor Power: 5.5–7.5 kW
Hydraulic Power: 4 kW
Hydraulic Cutting: Cr12 blades, heat treated
Control System: PLC (Siemens/Delta) with touch screen
Accuracy: ±1 mm
Production Speed: 10–15 m/min
Voltage: 380V, 3 Phase, 50Hz (customized available)
Roller Shaft Diameter: 70 mm
Roller Shaft Material: High-strength steel
Machine Size: Approx. 8m x 1.5m x 1.2m
Weight: Around 6 tons
Safety Features: Emergency stop, guards, low-noise
Sheet Type: 840 trapezoidal profile (shown in image)
Panel Appearance: Ribbed, symmetric profile with glossy finish
Application: Roofing for industrial/commercial/residential buildings
Decoiler: Optional 5-ton manual or hydraulic
Stacker: Optional auto stacker
Lubrication: Central oiling system
Painting: Rust-resistant frame coating
Maintenance: Simple & user-friendly
Color: Standard blue/yellow (custom colors available)
Operation: Fully automatic or semi-automatic
Packing: Plastic film + steel frame base
Lead Time: 20–30 days
After-Sales Service: Online support & on-site training
Warranty: 1 year
Certifications: CE, ISO9001
